Motion Detection Radar

SMR-314 Radar Sensor

Product family: SMT mountable K-Band VCO sensor
Applications: Security applications, industrial applications
Functions: Movement, Velocity, Direction, Distance, Presence
The SMR-314 is a K-Band based VCO sensor. The tiny device will be delivered directly on tape for mounting within a standard SMT. Due to the VCO capability, the sensor is also suitable for applications in which frequency modulation is necessary (e.g. distance measurement). The radar sensor has a low duty-cycle pulse mode to fit in low-power applications. The antenna design of the SMR-334 has a narrow field of view. 
The SMR-334 is a 24GHz radar front end for the detection of moving objects. The VCO transceiver is equipped with a prescaler for easy frequency control. By using FMCW modulation, the sensor delivers extended object information like speed, direction as well as distance. It also recognises the presence of stationary objects. Typical application fields are home & building automation or security technology.
The InnoSenT SMR-Series offers four product variants.
The SMR-334 and -314 are FMCW radar modules and are capable of detecting not only moving, but also stationary objects. Therefore, these products capture more object information than the SMR-333 and -313 which are CW radar variants. The SMR-334 and -314 differs in their antenna pattern by the same interface. The SMR series does not include signal processing.


  • FMCW capable → detection of direction, velocity, distance of moving and stationary objects
  • wide field of view
  • VCO Transceiver equipped with prescaler for frequency control
  • first pick & place radar module
  • mounting by standard SMT-Process
  • delivery on tape & reel
  • low noise amplifier integrated


Frequency: FMCW radar working in the 24GHz ISM-band
Systemlevel: Radar front end without signal processing
Measurement: velocity, direction, distance, presence of moving and stationary objects
Detection Range: max. 20m, typically 10m
Field of View: 121°x111°
Outline Dimensions: 3,1mmx21,4mmx15,0mm
Approvals: available on request
Supporting Material: software package, evaluation kit, evaluation kit user manual


Martin Maidhof
Key Account Management
Industrial Business Division
Region: DACH, Europe (East)

Qi Fang
Director of Sales Asia Pacific Region
Industrial Business Division
Region: Asia Pacific

Simon Barber
Key Account Management
Industrial Business Division
Region: Europe (West), UK, Middle East | Office: UK

Anthony Bonarti
Key Account Management
Industrial Business Division
Region: Canada North, South America